know budgerigar male and female gender

Budgerigar, Australian parakeet, How to know budgerigar male or female, while you choose it as a pet, people are some time confused, it is easy to determine that male budgerigar, male budgerigar cere colour is blue and female budgerigar cere colour is dark brown in breeding season, and pink colour is also sign of adult female budgerigar. they are the worlds best first pet birds, people are keeping them as a pet because they are easy to maintain keep them healthy, happy by some care, by all over the world. there are different types of budgerigar colour like basic colour is green, yellow, white, blue, grey, violet and many other mutations its colour depends upon male budgerigar female budgerigar pair colour.